JPH02123569A - Magnetic tape and data recording system using the same - Google Patents
Magnetic tape and data recording system using the sameInfo
- Publication number
- JPH02123569A JPH02123569A JP63278188A JP27818888A JPH02123569A JP H02123569 A JPH02123569 A JP H02123569A JP 63278188 A JP63278188 A JP 63278188A JP 27818888 A JP27818888 A JP 27818888A JP H02123569 A JPH02123569 A JP H02123569A
- Authority
- JP
- Japan
- Prior art keywords
- data
- termination
- magnetic tape
- recording
- recorded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 abstract description 2
- 239000000696 magnetic material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
- G11B15/08—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
- G11B23/34—Signal means additional to the main recording track, e.g. photoelectric sensing of sprocket holes for timing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
- G11B27/26—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording by photoelectric detection, e.g. of sprocket holes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、磁気テープおよびそれを用いたデータ記録方
式に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic tape and a data recording system using the magnetic tape.
従来の技術
回転ヘッド方式のデジタル・オーディオ・テープレコー
ダ（ＤＡＴ）では、本来の音響信号を記録する記録再生
装置としての用途の他に、たとえばホストコンピュータ
などの外部記憶装置として用いられる場きがある。Conventional technology A digital audio tape recorder (DAT) with a rotating head type is used not only as a recording/playback device for recording audio signals, but also as an external storage device for a host computer, etc. .
デジタル・オーディオ・テープレコーダに用いられる磁
気テープには、その走行方向終端位置に透明な非磁性体
の部分から成る終端識別部が設けられている。ホストコ
ンピュータから送出されるデータを順次この磁気テープ
に記録し、前述した終端識別部がたとえばホトインタラ
プタなどによって検出されたときには、該デジタル・オ
ーディオ・テープレコーダからホストコンピュータに対
してｆｐ！端位置を検出したという旨の信号が出力され
る。A magnetic tape used in a digital audio tape recorder is provided with an end identification section made of a transparent non-magnetic material at its end position in the running direction. Data sent from the host computer is sequentially recorded on this magnetic tape, and when the aforementioned termination identification section is detected by, for example, a photointerrupter, the digital audio tape recorder sends fp! A signal indicating that the end position has been detected is output.
これによって、ホストコンピュータ側では、データの送
出を停止するなどの処理が行われる。As a result, the host computer performs processing such as stopping data transmission.
発明が解決しようとする課題
このようにホストコンピュータの外部記憶装置として用
いられるデジタル・オーディオ・テープレコーダには、
大容量の半導体メモリから成るバッファメモリが内蔵さ
れており、ホストコンピュータから送出されるデータは
、−時このバッファメモリ内に記憶され、このバッファ
メモリから出力されるデータが磁気テープに記録される
。したがって、前述したように磁気テープの終端位置が
検出されたときには、磁気テープ側にはすでに記録すべ
き頭載が殆ど残っていないにもかかわらず、バッファメ
モリ内には大量のデータが残っている場合がある。この
ような場合には、バッファメモリ内のデータを磁気テー
プに記録することができず、残留したバッファメモリ内
のデータの処理は、ホストコンピュータに逆転送する方
法しかなく、ホストコンピュータの負担が増大していた
。Problems to be Solved by the Invention The digital audio tape recorder used as an external storage device for a host computer has the following problems:
A buffer memory consisting of a large capacity semiconductor memory is built in. Data sent from the host computer is stored in this buffer memory, and data output from this buffer memory is recorded on a magnetic tape. Therefore, as mentioned above, when the end position of the magnetic tape is detected, even though there is almost no header remaining on the magnetic tape to be recorded, a large amount of data remains in the buffer memory. There are cases. In such a case, the data in the buffer memory cannot be recorded on magnetic tape, and the only way to process the remaining data in the buffer memory is to transfer it back to the host computer, which increases the burden on the host computer. Was.
本発明の目的は、磁気テープにデータを記録するにあた
って、磁気テープの走行方向終端付近における記録動作
の作業効率を向上することができる磁気テープおよびそ
れを用いたデータ記録方式を提供することである。An object of the present invention is to provide a magnetic tape and a data recording method using the same that can improve the efficiency of recording operations near the end of the magnetic tape in the running direction when recording data on the magnetic tape. .
課題を解決するための手段
本発明は、走行方向終端位置およびこの終端位置から走
行方向上流側に予め定めなｌｉ！！離だけ離れた位置に
第１終端識別部および第２終端識別部をそれぞれ設ける
ようにしたことを特徴とする磁気テープである。Means for Solving the Problems The present invention provides a terminal position in the running direction and a predetermined position li! on the upstream side of the running direction from the terminal position. ! The magnetic tape is characterized in that a first end identification portion and a second end identification portion are provided at positions separated by a distance.
また本発明は、走行方向終端位置およびこの終端位置か
ら走行方向上流側に予め定めた距離だけ離れた位置に第
１終端識別部および第２終端識別部がそれぞれ設けられ
る磁気テープと、磁気テープにデータを記録する記録手
段と、前記第１終端識別部および第２終端識別部を検出
し、ｌａ ％ テープの走行方向に沿って前記記録手段
と離れた位置に設けられる終端検出手段と、磁気テープ
に記録されるデータを記憶する記憶手段とを有する記録
装置とを準備し、
磁気テープに記録装置でデータを記録するにあたって、
前記終端検出手段が第２終端識別部を検出しなとき、少
なくとも第２終端識別部の前記走行方向上流側に終端識
別データを記録し、第２終端識別部と第１終端識別部と
の間には、前記記憶手段において第２終端識別部検出以
前の記憶データ以外の残余のデータを記録するようにし
たことを特徴とするデータ記録方式である。The present invention also provides a magnetic tape in which a first end identification section and a second end identification section are respectively provided at a running direction terminal position and at a position separated by a predetermined distance from this terminal position upstream in the running direction; a recording means for recording data; an end detection means for detecting the first end identification section and the second end identification section and provided at a position apart from the recording means along the running direction of the tape; and a magnetic tape In recording the data on the magnetic tape with the recording device,
When the termination detection means does not detect the second termination identification section, it records termination identification data at least on the upstream side of the second termination identification section in the traveling direction, and records the termination identification data between the second termination identification section and the first termination identification section. The data recording method is characterized in that the storage means records remaining data other than the stored data before the detection of the second end identification section.
作用
本発明に用いられる磁気テープには、走行方向終端位置
から走行方向上流側に予め定めた距離だけ離れた位置に
、従来から設けられる第１の終端識別部とは別に第２の
終端識別部を設けるようにした。このような磁気テープ
に記録装置でデータを記録するにあたっては、終端検出
手段によって先ず第２の終端識別部が検出され、この第
２の終ｒａ識別部と第１の終端識別部との間に、記憶手
段において第２の終端識別部検出以前に記録された記録
データ以外の残余の記憶データを記録する。Function: The magnetic tape used in the present invention has a second end identification section, which is located at a predetermined distance upstream from the end position in the running direction, in addition to the first end identification section conventionally provided. . When recording data on such a magnetic tape with a recording device, the second end identification section is first detected by the end detection means, and the second end identification section is detected between the second end RA identification section and the first end identification section. , the remaining storage data other than the recorded data recorded before the detection of the second end identification section is recorded in the storage means.
これによって、記憶手段内の全ての記憶データを第１の
終端識別部に達するまでに記録することができ、その記
録作業効率を高めることができろ。With this, all the stored data in the storage means can be recorded before reaching the first end identification section, and the efficiency of the recording operation can be improved.
実施例
第１０は、本発明の一実施例に用いられるデジタル・オ
ーディオ・テープレコーダ１およびホストコンピュータ
２の電気的構成を示すブロック図である。Embodiment 10 is a block diagram showing the electrical configuration of a digital audio tape recorder 1 and a host computer 2 used in an embodiment of the present invention.
磁気テープ３は、その始端が巻取り側リール４ａに止着
される一方、終端が供給側リール４ｂに止着されて、記
録動ｆＦ時および再生動作時には供給側リール４ｂから
巻取り側リール４ａへと磁気テープ３が巻取られる。−
磁気テープ３の途中部分は回転ドラムヘッドらに接して
おり、この回転ドラムへラド５によって磁気テープ３へ
のデータの記録／再生動作が行われる。また、磁気テー
プ３の回転ドラムへンド５と供給側リール４ｂとの間に
は、磁気テープ３を走行駆動させるキャプスタン６およ
びこの磁気テープ３の終端位置を検出する終端検出装置
７が設けられる。キャプスタン６は、制御回路８に接続
されるキャプスタン駆動回路９によ−）て駆動される。The magnetic tape 3 has its starting end fixed to the take-up reel 4a, and its terminal end fixed to the supply reel 4b, so that the magnetic tape 3 is transferred from the supply reel 4b to the take-up reel 4a during recording and reproducing operations. The magnetic tape 3 is wound up. −
An intermediate portion of the magnetic tape 3 is in contact with a rotating drum head, and the recording/reproducing operation of data on the magnetic tape 3 is performed by the rotary drum head 5. Further, between the rotary drum end 5 of the magnetic tape 3 and the supply reel 4b, a capstan 6 for driving the magnetic tape 3 to travel and an end detection device 7 for detecting the end position of the magnetic tape 3 are provided. . The capstan 6 is driven by a capstan drive circuit 9 connected to a control circuit 8.
ホストコンピュータ２からのデータは、インターフェイ
ス１０を介して半導体メモリから成るバッファメモリ１
１に一時記憶される。バッファメモリ１１内に記憶され
たデータは、信号処理回路１２において磁気テープ３に
記録するための変調処理が施され、記録増幅器１３を介
して前記回転ドラノ、ヘッド５に送られる。回転ドラム
ヘッド５において再生された磁気テープ３の記録データ
は、再生増幅器１４を介して前記信号処理回路１２に与
えられ、バッファメモリ１１およびインターフェイス１
０を介してホストコンピュータ２に送出される。バッフ
ァメモリ１１および信号処理回路１２は、それぞれ制（
坤回路８によってその動作が制御絆される。また、ホス
トコンピュータ２からデジタル・オーディオ・テープレ
コーダ１への各種のコマンド信号は、インターフェイス
１０を介して制御回路８に与えられる。Data from the host computer 2 is transferred via an interface 10 to a buffer memory 1 consisting of a semiconductor memory.
1 is temporarily stored. The data stored in the buffer memory 11 is subjected to modulation processing in order to be recorded on the magnetic tape 3 in a signal processing circuit 12, and is sent to the rotary head 5 via a recording amplifier 13. Recorded data on the magnetic tape 3 reproduced by the rotary drum head 5 is provided to the signal processing circuit 12 via the reproduction amplifier 14, and is sent to the buffer memory 11 and the interface 1.
0 to the host computer 2. The buffer memory 11 and the signal processing circuit 12 each have a control (
Its operation is controlled by the control circuit 8. Further, various command signals from the host computer 2 to the digital audio tape recorder 1 are given to the control circuit 8 via the interface 10.
第２図は、磁気データ３の展開図である。磁気テープ３
の走行方向上流側端部および下流ｌＩＩ！Ｉ端部付近に
は、それぞれ透明な非磁性材料から成る始端部分２０お
よび第１の終端部分２１が設けられる。前記第１の終端
部分２１から磁気テープの走行方向上流側に一定のＶ＠
離だけ離れた位置には、同様に透明な非磁性材料から成
る第２の終端部分２２が設けられる。始端部分２０およ
び第２の終端部分２２の閏は、磁性材料から成る第１の
記録領域２３とされ、第２の終端部分２２と第１の終端
部分２１との問は、磁性材料から成る第２の記録ｉ１［
２４とされる。第２の終端部分２２と第１の終端部分２
１との￥＠離、すなわち第２の記録領域２４に記録され
るデータの記録容量は、前記バッファメモリ１１に記憶
されるデータの記＋１１容量よりも大きくなるように選
ばれる。また、第２の終端部分２２の両側部には、後述
されるダミーデータが記録されるダミーデータ記録領域
２５εｔ、２５ｂが設けられる。FIG. 2 is a developed view of the magnetic data 3. magnetic tape 3
The upstream end in the running direction and the downstream lII! A starting end portion 20 and a first end portion 21 each made of a transparent non-magnetic material are provided near the I end. A constant V@ is applied to the upstream side in the running direction of the magnetic tape from the first end portion 21.
A second end portion 22, also made of transparent non-magnetic material, is provided at a distance. The leap between the starting end portion 20 and the second end portion 22 is a first recording area 23 made of a magnetic material, and the gap between the second end portion 22 and the first end portion 21 is a first recording area 23 made of a magnetic material. 2 record i1[
It is said to be 24. Second end portion 22 and first end portion 2
1, that is, the recording capacity of the data recorded in the second recording area 24 is selected so as to be larger than the +11 capacity of the data stored in the buffer memory 11. Further, on both sides of the second end portion 22, dummy data recording areas 25εt and 25b are provided in which dummy data, which will be described later, is recorded.
次ニ、ホストコンピュータ２から送出されるデータの磁
気テープ３１＼の書込み動作について説明する。Next, the operation of writing data sent from the host computer 2 onto the magnetic tape 31\ will be explained.
ホストコンピュータ２からのデータ記録命令がインター
フェイス１０を介して制御回路８に与えられると、制御
回路８はキャプスタン駆動回路９を介してキャプスタン
６を能動化し、磁気テープ３を第１図矢′Ｆ！ｆＡ方向
に走行させる。記録すべきデータは、ホストコンピュー
タ２からインターフェイス１０を介してバッファメモリ
１１内に一時記憶される。バックアメモリ１１に記憶さ
れたデータは、制御回路８からの信号に基づいて順次信
号処理回路１２に与えられ、記録にＩ＆適な変調を受け
た後に、記録増幅器１３を介して回転ドラムヘッド５に
与えられ、磁気テープ３に記録される。When a data recording command from the host computer 2 is given to the control circuit 8 via the interface 10, the control circuit 8 activates the capstan 6 via the capstan drive circuit 9, and moves the magnetic tape 3 in the direction indicated by the arrow '' in FIG. F! Make it run in the fA direction. Data to be recorded is temporarily stored in buffer memory 11 from host computer 2 via interface 10 . The data stored in the backup memory 11 is sequentially given to the signal processing circuit 12 based on the signal from the control circuit 8, and after being subjected to I & suitable modulation for recording, it is sent to the rotating drum head 5 via the recording amplifier 13. is given and recorded on the magnetic tape 3.
このようにして、順次磁気テープ３にデータを記録して
ゆき、磁気データ３の終端は近になると。In this way, data is sequentially recorded on the magnetic tape 3, and the end of the magnetic data 3 is near.
たとえばホトインタラアタなどによ−）で実現される終
端検出装置１７が前記第２の終端部分２２を検出し、こ
の旨を制ｆ３１回路８八、出力する。制御回路Ｓは、こ
の旨を示す信号をホストコンピュータ２へ出力するとと
もに、信号処理回路１２を介して前記ダミーデータ記録
領域２５ ｆｆｔ 、 ２．５ ｂにダミーデータを記
録する。For example, a termination detection device 17 realized by a photointerrupter (2004) detects the second termination portion 22, and outputs this fact to the control f31 circuit 88. The control circuit S outputs a signal indicating this to the host computer 2, and records dummy data in the dummy data recording areas 25 fft and 2.5 b via the signal processing circuit 12.
この後に、バッファメモリ１１内に残留しているデータ
を第２の記録領域２４に記録する。また、ホストコンピ
ュータ２からの記録命令によるデータがあれば、このデ
ータも記録する。こうして従来から設けられている第１
の終端部分２１が現れる前に、少なくともバッファメモ
リ１１内の残留データを全て記録することができ、従来
技術の項で述べたようなホスト・コンピュータ２側への
逆転送などの動作を行うなどの無駄な動作を行う必要が
なく、その記録作業効率を向上することができる。After this, the data remaining in the buffer memory 11 is recorded in the second recording area 24. Furthermore, if there is data according to a recording command from the host computer 2, this data is also recorded. In this way, the first
At least all the remaining data in the buffer memory 11 can be recorded before the terminal portion 21 of There is no need to perform unnecessary operations, and the recording work efficiency can be improved.
一方、ホストコンピュータ２がら続出し命令が出力され
ると、前述した記録動作と同様に磁気テープ３を走行さ
せて、回転ドラ１１ヘツド５で再生されたデータを再生
増幅器１４および信号処理回路１２を介して前記バッフ
ァメモリ１１に一時記憶する。バッファメモリ１１に記
憶されたデータは、制御回路８からの信号によって順次
インターフェイス１０を介してホストコンピュータ２へ
送出される。On the other hand, when a continuous output command is output from the host computer 2, the magnetic tape 3 is run in the same manner as in the recording operation described above, and the data reproduced by the rotary drum 11 head 5 is transmitted to the reproduction amplifier 14 and the signal processing circuit 12. The data is temporarily stored in the buffer memory 11 via the buffer memory 11. The data stored in the buffer memory 11 is sequentially sent to the host computer 2 via the interface 10 in response to signals from the control circuit 8.
このようにして、順次データの再生動作が行われ、磁気
チー１３の終端付近に近付くと、前述した記録動作と同
様に終端検出装置７によって第２の終端部分２２が検出
される。このとき、ダミーデータ記録領域２５ａ、２５
ｂに記憶されたダミーデータは無視され、これに続く第
２の記録領域２４に記録されたデータがホストコンピュ
ータ２へ送出される。このように第２の終端部３）２２
付近の再生時には、ダミーデータ記録領域２５ａ。In this way, the data reproduction operation is performed sequentially, and when the end of the magnetic chip 13 approaches, the second end portion 22 is detected by the end detection device 7 in the same way as in the recording operation described above. At this time, the dummy data recording areas 25a, 25
The dummy data stored in b is ignored, and the subsequent data recorded in the second recording area 24 is sent to the host computer 2. Thus the second terminal end 3) 22
At the time of nearby reproduction, the dummy data recording area 25a.
２５ｂに記録されたダミーデータを無視するようにした
ので、第２の終端部分２２を設けることによるデータ再
生時の不具自を回避することができる。Since the dummy data recorded in 25b is ignored, it is possible to avoid problems during data reproduction due to the provision of the second end portion 22.
このように本発明では、従来から設けられている第１の
終端部分２１に加えて、第２の終端部分２２を設けるよ
うにしたので、データの記録時においてはその終端部分
に近付いたことを従来よりさらに速く認知することがで
き、全ての記録領域がなくなる前に効率よくデータを記
録することができる。In this way, in the present invention, in addition to the conventionally provided first end portion 21, the second end portion 22 is provided, so that when recording data, it is possible to detect when the end portion is near. Data can be recognized even faster than before, and data can be efficiently recorded before all recording areas are used up.
なお、前記ダミーデータ記録領域２５ａ、２５ｂには、
ダミーデータを記録するようにしたけれども、再生時に
おいて第２の終端部分を識別することができるならば、
たとえば無記録状態にしておいてもよい。Note that the dummy data recording areas 25a and 25b include:
Although dummy data is recorded, if the second end part can be identified during playback,
For example, it may be left in a non-recording state.
発明の効果
以上のように本発明に従えば、第２終端識別部を第１終
端識別部よりも磁気テープの走行方向上流側に設け、磁
気デープの終端は近の検出をより早く行えるようにした
ので、磁気テープの終端付近における記録動作の作業効
率を向上することができる。Effects of the Invention As described above, according to the present invention, the second end identification section is provided upstream of the first end identification section in the running direction of the magnetic tape, so that the near end of the magnetic tape can be detected more quickly. Therefore, the efficiency of the recording operation near the end of the magnetic tape can be improved.
第１図は本発明の一実施例の電気的構成を示すブロック
図、第２０は磁気テープ３の展開図である。
１・・・デジタル・オーディオ・テープレコーダ、３・
・・磁気テープ、５・・回転ドラムヘッド、７・・・終
端検出装置、８・・・制御回路、１１・・・バッファメ
モリ、１２・・・信号処理回路、２０・・・始端部分、
２１・・・第１の終端部分、２２・・・第２の終端部分
、２３・・・第１の記録領域、２４・・−第２の記ｊ！
ｍ、域代理人 弁理士 画数 圭一部FIG. 1 is a block diagram showing the electrical configuration of an embodiment of the present invention, and FIG. 20 is a developed view of the magnetic tape 3. In FIG. 1...Digital audio tape recorder, 3.
...Magnetic tape, 5.. Rotating drum head, 7.. End detection device, 8.. Control circuit, 11.. Buffer memory, 12.. Signal processing circuit, 20.. Start end portion,
21...First end portion, 22...Second end portion, 23...First recording area, 24...-Second note j!
m, area agent patent attorney number of strokes Keiichi
Claims (2)
向上流側に予め定めた距離だけ離れた位置に第１終端識
別部および第２終端識別部をそれぞれ設けるようにした
ことを特徴とする磁気テープ。(1) A magnetic tape characterized in that a first end identification section and a second end identification section are provided at a running direction terminal position and at a position a predetermined distance away from this terminal position upstream in the running direction, respectively. .
向上流側に予め定めた距離だけ離れた位置に第１終端識
別部および第２終端識別部がそれぞれ設けられる磁気テ
ープと、 磁気テープにデータを記録する記録手段と、前記第１終
端識別部および第２終端識別部を検出し、磁気テープの
走行方向に沿って前記記録手段と離れた位置に設けられ
る終端検出手段と、磁気テープに記録されるデータを記
憶する記憶手段とを有する記録装置とを準備し、 磁気テープに記録装置でデータを記録するにあたつて、
前記終端検出手段が第２終端識別部を検出したとき、少
なくとも第２終端識別部の前記走行方向上流側に終端識
別データを記録し、 第２終端識別部と第１終端識別部との間には、前記記憶
手段において第２終端識別部検出以前の記憶データ以外
の残余のデータを記録するようにしたことを特徴とする
データ記録方式。(2) a magnetic tape in which a first end identification section and a second end identification section are respectively provided at a running direction terminal position and at a position a predetermined distance away from this terminal position upstream in the running direction; and data on the magnetic tape. a recording means for recording, an end detecting means for detecting the first end identification section and the second end identification section and provided at a position apart from the recording means along the running direction of the magnetic tape; In recording the data on the magnetic tape with the recording device,
When the termination detection means detects the second termination identification part, it records termination identification data at least on the upstream side of the second termination identification part in the traveling direction, and records the termination identification data between the second termination identification part and the first termination identification part. The data recording method is characterized in that the storage means records remaining data other than the stored data before the detection of the second end identification section.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278188A JPH02123569A (en) | 1988-11-02 | 1988-11-02 | Magnetic tape and data recording system using the same |
| US07/430,154 US5055948A (en) | 1988-11-02 | 1989-11-01 | Magnetic tape using two end position identifying parts and a data recording method and apparatus using the magnetic tape |
| DE3936497A DE3936497A1 (en) | 1988-11-02 | 1989-11-02 | MAGNETIC TAPE AND METHOD AND DEVICE FOR RECORDING DATA ON THE MAGNETIC TAPE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278188A JPH02123569A (en) | 1988-11-02 | 1988-11-02 | Magnetic tape and data recording system using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02123569A true JPH02123569A (en) | 1990-05-11 |
Family
ID=17593817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63278188A Pending JPH02123569A (en) | 1988-11-02 | 1988-11-02 | Magnetic tape and data recording system using the same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5055948A (en) |
| JP (1) | JPH02123569A (en) |
| DE (1) | DE3936497A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0346102A (en) * | 1989-07-14 | 1991-02-27 | Teac Corp | Method for recording data in rotary head type magnetic tape unit |
| FI114881B (en) * | 2001-06-01 | 2005-01-14 | Sanako Oy | Language learning system and a digital memory device |
| US7127576B1 (en) * | 2003-05-21 | 2006-10-24 | Raytheon Company | Method and system for data duplication |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1835197U (en) * | 1960-10-08 | 1961-07-20 | Standard Elektrik Lorenz Ag | MAGNETIC TAPE WITH DEVICE TO DISPLAY THE TAPE END OR A SECTION OF TAPE. |
| US3566132A (en) * | 1967-12-26 | 1971-02-23 | Gen Electric | Beginning-of-tape and end-of-tape sensor |
| JPS5830658B2 (en) * | 1975-09-25 | 1983-06-30 | キヤノン株式会社 | Data processing method |
| US4750052A (en) * | 1981-02-13 | 1988-06-07 | Zenith Electronics Corporation | Apparatus and method for automatically deleting selected program intervals from recorded television broadcasts |
| US4615682A (en) * | 1984-12-13 | 1986-10-07 | Salvo Andrew D | Teaching system utilizing magnetic tape |
| US4848698A (en) * | 1988-06-02 | 1989-07-18 | Newell Research Corporation | Method for writing and means for reading position-indicating markers on tape |
| US4863114A (en) * | 1988-06-17 | 1989-09-05 | Minnesota Mining And Manufacturing Company | Magnetic tape cartridge identification |
-
1988
- 1988-11-02 JP JP63278188A patent/JPH02123569A/en active Pending
-
1989
- 1989-11-01 US US07/430,154 patent/US5055948A/en not_active Expired - Fee Related
- 1989-11-02 DE DE3936497A patent/DE3936497A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US5055948A (en) | 1991-10-08 |
| DE3936497A1 (en) | 1990-05-03 |
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